What is the 27th letter in the alphabet? And the 4 in Greek alphabet?

In “we wear the mask,” which message is conveyed by dunbar’s repetition of the phrase “we wear the mask”?

Something you may do if the weather's nice on sunday. -something you might not want to do this evening. -something you could go on aaturday evening. -something you could wear to a party. -somebody you might see in the next couple of days. -a subject you could study at college or university. -somewhere you might go on holiday .

When you encounter an unknown word that has a prefix what is the first thing you do